April 21, 2009In an effort to improve the redundancy of our network, I have all of our blade servers configured to have bonded network interfaces. Bonding the interfaces in linux means that eth0 and eth1 form together like Voltron into bond0, an interface that can be “high availability”, meaning if one physical port (or the device it [...]
Posted in asking questions, networking, switches, troubleshooting 
16 Comments »
March 10, 2009Troubleshooting is a very reactive process. By its nature, you’re fixing an already existing problem. As good as it is to be able to troubleshoot, it’s better to prevent weird problems from cropping up in the first place.
As sysadmins, we have numerous ways to do this. First, as Michael Jenke very sensibly suggests, is [...]
Posted in checklists, debugging, troubleshooting 4 Comments »
February 19, 2009Duct tape. The Force. DNS.
These are the things that bind our world together. Sure, you can’t see the force when you’re juggling rocks while standing on your head, just like you don’t pay attention to DNS 99% of the time you’re browsing the web, but that doesn’t mean it doesn’t affect everything you do. [...]
Posted in dns, troubleshooting 4 Comments »
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